A 50-Kg Pumpkin Is Dropped from the Top of the RCA

question 57

Multiple Choice

A 5.0-kg pumpkin is dropped from the top of the RCA Building in New York City.If it falls through a distance of 380 m,and splats on the sidewalk with a speed of 52.0 m/s,what is the work done by air resistance during its fall?

• A)12 kJ
• B)-12 kJ
• C)19 kJ
• D)-19 kJ

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Definitions:

Constant Growth

A situation or model where values (such as dividends or revenues) increase at a steady, unvarying rate over time.

Consumer Price Index (CPI)

A measure that examines the weighted average of prices of a basket of consumer goods and services, as an indicator of inflation.

Compounded Annually

The calculation of interest on the initial principal, which includes all accumulated interest from previous periods on a deposit or loan.

Compounded Semi-annually

Refers to the process where interest is added to the principal balance of an investment or loan twice a year, resulting in the interest earning interest.